# 5-Channel PWM LED Driver ## Description 24 V five-channel PWM low-side MOSFET LED driver for one RGBW LED and one 850 nm IR LED, controlled by 3.3 V logic inputs. ## Project Details - **Owner:** electronrcwy - **Created:** 7/11/2026 - **Last Updated:** 7/11/2026 - **Visibility:** Public ## Key Components ### D_B — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Manufacturer Part Number: SS14 - Role: Rectification - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Part Type: Diode - Role Details: AL8860 blue channel freewheel diode, 40 V 1 A Schottky - Manufacturer Name: Slkor(SLKORMICRO Elec.) **Pins:** - Anode - Cathode ### D_G — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Role Details: AL8860 green channel freewheel diode, 40 V 1 A Schottky - Manufacturer Part Number: SS14 - Role: Rectification - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Part Type: Diode - Manufacturer Name: Slkor(SLKORMICRO Elec.) **Pins:** - Anode - Cathode ### D_IR — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Manufacturer Name: Slkor(SLKORMICRO Elec.) - Part Type: Diode - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Role: Rectification - Role Details: AL8860 IR channel freewheel diode, 40 V 1 A Schottky - Manufacturer Part Number: SS14 **Pins:** - Anode - Cathode ### D_R — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Manufacturer Part Number: SS14 - Role Details: AL8860 red channel freewheel diode, 40 V 1 A Schottky - Role: Rectification - Part Type: Diode - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Manufacturer Name: Slkor(SLKORMICRO Elec.) **Pins:** - Anode - Cathode ### D_REV — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - LCSC Part Number: C2758511 - Part Type: Schottky Barrier Diodes (SBD) - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - Manufacturer Name: UMW(友台半导体) - JLCPCB Part Class: Extended Part - Role: Reverse Polarity Protection - Datasheet URL: https://www.lcsc.com/datasheet/C2758511.pdf - Forward Voltage: 0.3V to 0.45V - Role Details: Series 40 V 3 A Schottky diode after input fuse; note heat at high input current - Manufacturer Part Number: SS34 - Diode Type: Schottky - Reverse Voltage: 40V **Pins:** - A [pin 2] - K [pin 1] ### D_TVS — [SMBJ26A-13-F](https://www.flux.ai/lcsc/smbj26a-13-f~v3oj.md) - Manufacturer Name: DIODES(美台) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ26A-13-F_C135062.pdf - Manufacturer Part Number: SMBJ26A-13-F - Part Type: TVS - JLCPCB Part Class: Extended Part - Role: Protection - LCSC Part Number: C135062 - Role Details: 26 V standoff SMBJ TVS across protected 24 V rail to ground - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ26A-13-F_SMBJ26A-13-F_C135062.html **Pins:** - A [pin 2] - K [pin 1] ### D_W — [SS14](https://www.flux.ai/jecstronic/ss14~ri4.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Slkor-SLKORMICRO-Elec--SS14_C444721.pdf - Part Type: Diode - Manufacturer Name: Slkor(SLKORMICRO Elec.) - Manufacturer Part Number: SS14 - Role: Rectification - Role Details: AL8860 white channel freewheel diode, 40 V 1 A Schottky **Pins:** - Anode - Cathode ### F_IN — [0ZCF0200AF2C](https://www.flux.ai/adrian95/0zcf0200af2c~eal.md) - Datasheet URL: https://belfuse.com/resources/datasheets/circuitprotection/ds-cp-0zcf-series.pdf - Role Details: 24 V input PTC fuse, 2 A hold current; expected all-on current is well below this with buck drivers - Package or Case Code: FUSC7451X80N - Manufacturer Part Number: 0ZCF0200AF2C - Part Type: Fuse - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: BelFuse **Pins:** - ~ [pin 2] - ~ [pin 1] ### J_LED2 — [1935242](https://www.flux.ai/mvniekerk/1935242~hm.md) - Manufacturer Part Number: 1935242 - Manufacturer Name: Phoenix Contact - Role: Current Limiting - Role Details: LED outputs: R+/R-/G+/G-/B+/B-/W+/W-/IR+/IR- for Chanzon RGBW 8-pin LED plus Chanzon 3W 850nm IR LED - Datasheet URL: https://www.phoenixcontact.com/us/products/1935242/pdf **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_PWM — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x06-2p54mm-vertical~lzd.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TSW-106-07-G-S - Role: Logic Input - Role Details: Five 3.3 V PWM inputs plus ground; 2.54mm 1x6 vertical header, Samtec TSW-106-07-G-S equivalent - Part Type: Connector - Manufacturer Name: Samtec **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J_PWR — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P - Part Type: Connector - Role Details: 24 V DC input, sized for the estimated LED/resistor input current - Datasheet URL: https://www.lcsc.com/datasheet/C557651.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=E1BYV1AHFgUMXgFVQ1AMU1JVQFReXgIATwJfA10DFVkxVlNRT1dXXlVTQ1hbUjsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Role: Power Input **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### RS_B — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Manufacturer Part Number: CSR1206FKR330 - Role: Sensing (Shunt) - Tolerance: 1% - Package: SMD_1206_3216Metric - Role Details: AL8860 current sense: ILED≈0.1/0.33Ω≈303mA for Chanzon blue channel - Power Rating: 0.5W - Manufacturer Name: Stackpole - Resistance: 0.33Ω - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### RS_G — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Power Rating: 0.5W - Tolerance: 1% - Manufacturer Part Number: CSR1206FKR330 - Package: SMD_1206_3216Metric - Resistance: 0.33Ω - Role Details: AL8860 current sense: ILED≈0.1/0.33Ω≈303mA for Chanzon green channel - Part Type: Resistor - Role: Sensing (Shunt) - Manufacturer Name: Stackpole **Pins:** - P1 [pin 1] - P2 [pin 2] ### RS_IR — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Power Rating: 0.5W - Package: SMD_1206_3216Metric - Role: Sensing (Shunt) - Manufacturer Part Number: CSR1206FKR220 - Tolerance: 1% - Part Type: Resistor - Role Details: AL8860 current sense: ILED≈0.1/0.22Ω≈455mA for Chanzon 850nm IR channel - Resistance: 0.22Ω - Manufacturer Name: Stackpole **Pins:** - P1 [pin 1] - P2 [pin 2] ### RS_R — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Part Type: Resistor - Resistance: 0.33Ω - Role: Sensing (Shunt) - Manufacturer Name: Stackpole - Power Rating: 0.5W - Role Details: AL8860 current sense: ILED≈0.1/0.33Ω≈303mA for Chanzon red channel - Package: SMD_1206_3216Metric - Manufacturer Part Number: CSR1206FKR330 - Tolerance: 1% **Pins:** - P1 [pin 1] - P2 [pin 2] ### RS_W — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Manufacturer Name: Stackpole - Role: Sensing (Shunt) - Part Type: Resistor - Resistance: 0.33Ω - Package: SMD_1206_3216Metric - Manufacturer Part Number: CSR1206FKR330 - Tolerance: 1% - Power Rating: 0.5W - Role Details: AL8860 current sense: ILED≈0.1/0.33Ω≈303mA for Chanzon white channel **Pins:** - P1 [pin 1] - P2 [pin 2] ### U_B — [AL8860WT](https://www.flux.ai/kicad-part-library/al8860wt~h6v.md) - Role: Power Conversion - Datasheet URL: https://www.diodes.com/assets/Datasheets/AL8860.pdf - Package or Case Code: TSOT-23-5 - Manufacturer Part Number: AL8860WT - Role Details: AL8860 24 V buck LED driver, 3.3 V PWM on CTRL, blue channel set to ~303 mA with 0.33Ω sense resistor **Pins:** - CTRL [pin 3] - GND [pin 2] - SET [pin 4] - SW [pin 1] - VIN [pin 5] ### U_G — [AL8860WT](https://www.flux.ai/kicad-part-library/al8860wt~h6v.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/AL8860.pdf - Package or Case Code: TSOT-23-5 - Manufacturer Part Number: AL8860WT - Role Details: AL8860 24 V buck LED driver, 3.3 V PWM on CTRL, green channel set to ~303 mA with 0.33Ω sense resistor - Role: Power Conversion **Pins:** - CTRL [pin 3] - GND [pin 2] - SET [pin 4] - SW [pin 1] - VIN [pin 5] ### U_IR — [AL8860WT](https://www.flux.ai/kicad-part-library/al8860wt~h6v.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/AL8860.pdf - Role: Power Conversion - Role Details: AL8860 24 V buck LED driver, 3.3 V PWM on CTRL, 850 nm IR channel set to ~455 mA with 0.22Ω sense resistor - Manufacturer Part Number: AL8860WT - Package or Case Code: TSOT-23-5 **Pins:** - CTRL [pin 3] - GND [pin 2] - SET [pin 4] - SW [pin 1] - VIN [pin 5] ### U_R — [AL8860WT](https://www.flux.ai/kicad-part-library/al8860wt~h6v.md) - Package or Case Code: TSOT-23-5 - Manufacturer Part Number: AL8860WT - Role Details: AL8860 24 V buck LED driver, 3.3 V PWM on CTRL, red channel set to ~303 mA with 0.33Ω sense resistor - Role: Power Conversion - Datasheet URL: https://www.diodes.com/assets/Datasheets/AL8860.pdf **Pins:** - CTRL [pin 3] - GND [pin 2] - SET [pin 4] - SW [pin 1] - VIN [pin 5] ### U_W — [AL8860WT](https://www.flux.ai/kicad-part-library/al8860wt~h6v.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/AL8860.pdf - Role Details: AL8860 24 V buck LED driver, 3.3 V PWM on CTRL, white channel set to ~303 mA with 0.33Ω sense resistor - Role: Power Conversion - Manufacturer Part Number: AL8860WT - Package or Case Code: TSOT-23-5 **Pins:** - CTRL [pin 3] - GND [pin 2] - SET [pin 4] - SW [pin 1] - VIN [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/electronrcwy/5-channel-pwm-led-driver~hh](https://www.flux.ai/electronrcwy/5-channel-pwm-led-driver~hh).* --- *Generated from [https://www.flux.ai/electronrcwy/5-channel-pwm-led-driver~hh](https://www.flux.ai/electronrcwy/5-channel-pwm-led-driver~hh)*